39 terms

Lymphatic Sytem Structures - Labeling

Collects excess tissue fluids
Lymphatic capillary
Drains lymph from specific body areas
Lymphatic trunk
Houses lymphatic cells
Lymph node
Drains right head and neck region
Right lymphatic duct
Larger of the two lymphatic ducts receiving lymph from all but the right head and neck region
Thoracic duct
A tubular offshoot from the cecum
Large collections of bean-shaped structures in the inguinal, axillary, and cervical regions
Lymph nodes
A filter and reservoir for the blood
Causes T cells to become immunocompetent
The simplest lymphoid organs
Same three tunics as veins; second-smallest lymph vessels tissue cells and blood capillaries in loose connective tissues; smallest vessels
Lymphatic collecting vessels
Same three tunics as veins; largest of lymph vessels
Lymphatic trunks
A type of loose connective tissue called reticular connective tissue; dominates all lymphoid organs except thymus
Lymphatic tissue
Bean-shaped structure surrounded by a dense fibrous capsule with fibrous strands that divide it into compartments
Lymph node
Vessels leading into lymph node
Afferent lymphatic vessels
A large, baglike sinus leading into a number of smaller sinuses
Subcapsular sinus
The indented region on the concave side of the node leading into the efferent vessels
Vessels leaving the lymph node
Efferent lymphatic vessels
Soft, blood-rich organ about the size of a fist (largest lymphoid organ)
Located in the inferior neck and extends into the superior thorax
Thymus gland
The simplest lymphoid organs; found around the entrance to the pharynx
Isolated clusters of lymph follicles located mostly in the wall of the appendix
Peyer's patches
Small lymphoid tissues found in digestive and respiratory tracts
Mucosa-associated lymphatic tissue (MALT)
Located within the germinal center of a lymph node
B cell
Located in the Deep cortex of a lymph node
T cell
Located in the surrounding the germinal center of a lymph node
Dendritic cells
Located in the medullary cords of a lymph node
Plasma cells
Located in the Lymph sinus of a lymph node
Protects the digestive and respiratory tracts from never-ending onslaughts of foreign matter entering mucosa lined cavities
Destroy bacteria in appendix; generate "memory" lymphocytes for long-term memory in intestine
Peyer's patches
Guard the throat by "inviting" bacteria into the lymphatic system and destroying them
Important in early years of life by training T lymphocytes to become immunocompetent
Provides a large, blood-filled site for lymphocyte proliferation and immune surveillance and response; cleanses the blood
Collects fluid that leaks from blood capillaries into tissue fluid
Lymphatic capillaries
Collect lymph fluid draining from lymphatic capillaries
Lymphatic collecting vessels
Largest vessels; carry lymph fluid to subclavian veins
Lymphatic ducts
Provides a proliferation site for lymphocytes and furnishes surveillance vantage point for lymphocytes and macrophages
Lymphoid tissue
Distinct bean-shaped structures that "filter" lymph fluid as it is moved toward the circulatory system
Lymph nodes
Begin as blind-ended tubes that weave between tissue cells and blood capillaries in loose connective tissues; smallest vessels
Lymphatic capillaries